robinson



(No Model.)

O; E. ROBINSON.

Wash Basin.

Patented May 24, 1881.

Wat/Mama;

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N. PEI'ERS. man-um WIINHM D, C.

UNITED STATES PATENT OFFICE.

CHARLES ROBINSON, OF NEW YORK, N. Y.

WASH- BASIN.

SPECIFIGATION forming part of Letters Patent No. 241,884, dated May 24, 1881.

Application filed April 4, 1881. (No model.)

To all whom it may concern:

Be it known that I, CHARLES E. ROBINSON, of New York city, New York, have invented certain new and'useful Improvements in Wash- Basins, of which the following is a specification.

My invention relates more particularly to that class of basins known as the Wellington, which consist of two concentric basins, the inner one of which overflows over its top edge into the outer one, both of which discharge through a central opening at the bottom intoa circular trap suspended in a circular trap-chamber, which is detachably held to the bottom of the outer basin and coupled to the waste-pipe.

My invention lies in improved means of attaching the basin to the slab and the trapchamber to the basin, and also means for boldiug the inner basin in the outer one, whereby the construction of the several parts is much simplified and cheapened, and at the same time rendered more efficient, to which ends my invention embodies a number of novel features, as hereinafter fully set forth.

Figure 1 of the drawingsannexed presents a central verticalsection of my improved basin and its overlying slab. Fig. 2 is a front elevation thereof, and Fig. 3 an inverted plan of the same. Fig. 4 is a perspective view of one of the detached details.

As illustrated, a indicates the outer basin or shell, which is fixed at its top edge to the under side of the slab b, and is usually made of enameled cast-iron.

c is the inner basin, or basin proper, which is held centrally in the outer shell, and is usually made of crockery.

()ne'feature of my invention consists in the manner of aflixing the basin to the slab. This consists in forming the top edge of the outer shell with a suitable number of wedge-shaped projections, d d, which engage with a corresponding number of shoulderedlugs or clamps, e, fixed to the under side of the slab. The projections d d have preferably a wedging form or bevel both vertically and horizontally, and the shoulders of the fixed slab-lugs have a similarvertical bevel to match therewith, so that by placing the basin against the top of the slab, with the entering ends of the wedging projections adjacent to the entering ends of the lugs d d, and turnin g the basin slightly, the projections and lugs will engage, and by a wedging action will draw the basin tightly against the slab, compressing the packing-ring f that may be inserted between the two to form a Water-tight joint, thus firmly attaching the basin to the slab by a slight and simple movement.

The clamping-lugs e are affixed to the slab in a novel manner, forming another feature of my invention. This consists in forming a pronged projection, e, on the base of the lugs e,-which is embedded in lead or equivalent cement run into a dovetailed or inwardly-spread cavity chiseled in the slab, asshown in Fig. 1. The clamping-lugs are preferably formed, as seen in Fig. 4, of stout sheet-brass, stamped by dies into proper shape, the pronged projection e thereon being formed from a tongue out from and bent up out of the plate, the opening thus left in the plate serving to allow the inpouriu g of the lead into the cavity of the slab, in which the prong becomes embedded, as will be readily understood.

Another feature of my invention lies in an improved mode of holding the inner basin or bowl centrally in the outer shell, and consists of a suitable number of stiff springs, g g, affixed to the outer shell and inclining toward the inner bowl, with overbent ends, which catch intoan annular groove formed around the inner bowl, near the margin thereof, as illustrated. This, as will be observed, forms a very simple and secure means of holding the inner bowl in place, for when the two basins are separated it will be understood that by simply forcing the inner one within the outer one the springs will he first spread out as they approach the groove of the inner bowl, and th en, springinginto engagement therewith,will thus secure the bowl in place, and in a manner, too, which is elastic, and hence more favorable to the endurance of a crockery bowl than a rigid means of attachment would be. At the same time this mode of attachment is such as admits of the inner bowl being readily removed when required, to accomplish which it is only necessary to insert a slender instrument between the two basins and pry one of the springs from the groove, when the bowl can be then removed.

It will be readily understood that, instead of forming a continuous groove around the inner bowl, segments of a groove or depressions may be made at the proper points to engage the springs; but the continuous groove is preferable.

Any suitable number of the catchsprings 5 may be used; but I prefer to use but three, arranged at equidistant points. These springs are preferably made of strongsheet-brass, with a dovetailed shank, which is soeketed in adovetailed socket or loop on the outer basin, and these sockets I prefer to form byflat and broad staples of sheet-iron cast into the basin; but the sockets may be formed in other ways.

The trap-cup It is suspended centrally in the trap-chamber 1', below the discharge-orifice of the basin, and the trap-chamber is connected at the top to the neck of the outer shell, and at the bottom to the waste-pipe, as illustrated. The neck of the basin is formed with a shoulder, against which the edge of the trap-chamber fits, as usual but the two parts are secured together in an improved manner, which forms another feature of my invention-that is, the outer shell is formed with two projecting L-shaped lugs or claws, mm, which depend therefrom on each side of the shoulder, and the trap-chamber i is formed with a projecting spiral or beveled rim, 7:, with which these claws engage, as shown. The spiral rim is indented with a notch at opposite sides to permit the engagement of the claws over the rim, and each semicircular half of the rim has an opposite bevel or incline, so that by passing the notches over the claws and turning the rim slightly under the same the trap-chamber becomes firmly clamped by a wedging action to the basin, thus forming a material improvement over the usual bolt-fastenings,which are not only more expensive in construction but more troublesome in operation.

It may also be observed that by this construction not only is the trap-chamber readily attachable, but by a slight and easy movement it may also be readily detached from the basin when it is desired to repair parts or remove obstructions from the trap,which, as will be readily understood, is quite desirable, and forms a distinct advantage over the previous connections, which admit of such removal only with comparative difticulty.

It will now be readily observed that these several improved features do not obstruct any of the usual functions of this kind of basin, but rather render its action more etlicient and safe, while they greatly cheapen and simplify the construction of the parts and render the fixation of the several parts of the basin very convenient as well as secure.

It may be understood that some of the described parts may be relatively reversed without departing from the principle of myinvention. For instance, the springs 1 may be fixed to the inner bowl and engaged with the outer shell; but this arrangement is not recommended, and the claws in may be formed 011 the trapchamber 1' and the spiral rim it on the neck of the basin; but the arrangements shown are preferred.

What I claim as my invention is 1. A wash-basin having its attaching-rim provided with two or more peripheral projections or segments, in combination with engaging-lugs fixable to the supporting-slab, the said lugs or projections, or both, having engagingfaces ot' wedging form, whereby, turning the basin upon the slab, with the said projections engaged with the lugs, the basin becomes clamped to the slab by the wedging action thereof, substantially as herein shown and described.

2. The combination,with two concentric basins, of one or more springs fixed to one basin and arranged to engage with grooves, dents, or shoulders on the other basin, substantially as and for the purpose set forth.

3. The combination, with a basin, of a supportingslab having one or more inwardlyspread cavities, in combination with one or more attached lugs arranged to engage the basin with the slab, and formed with laterallypron ged projections embedded in said cavities with suitable cement, substantially as herein shown and described.

CHARLES E. ROBINSON.

Witnesses:

EDWARD H. WALES, CHAS. M. HIGGINS. 

